Hi Lalit, import ctypes (or maybe windll instead of cdll below) ctypes.cdll.YourDllName.InitDialogFromFile("InitFromThisFile.txt") Simple, no? :-) For anything more complex - please look at the ctypes help. Ctypes helps you a lot - but there is no substitute for reading the help or googling around the 'net for some examples. Mark -----Original Message----- From: Lalit DIGARI [mailto:lalit.digari@st.com] Sent: Tuesday, April 04, 2006 12:37 AM To: Mark McMahon Cc: pythondotnet@python.org Subject: RE: [Python.NET] Use of c++ dll in python Thanks mark, How could I use dll's exposed function with in python script? Reagrd's lalit -----Original Message----- From: Mark McMahon [mailto:mark.mcmahon@eur.autodesk.com] Sent: Monday, April 03, 2006 5:41 PM To: Lalit DIGARI; pythondotnet@python.org Subject: RE: [Python.NET] Use of c++ dll in python Hi Lalit, This is not really the group to ask this question - as it doesn't have anything to do with python.NET. But other then that I can answer your question I think :-) You say a "C++ DLL". First thing is you need to make sure that your functions are correctly exported in an 'unmangled' form. What I do for this is the following: // create a macro DLLEXPORT for those methods you want to export #define DLLEXPORT extern "C" __declspec(dllexport) // the following may be optional - but can make things easier #define VB __stdcall // add the macro to your function prototypes DLLEXPORT int VB InitDialogFromFile (char const *const fileName); // in the CPP file define your function as you would normally do int VB InitDialogFromFile(char const * const fileName) { //FUNC BODY } You may also need to create a .def file ; Declares the module parameters for the DLL. NAME MyCPPDll.dll DESCRIPTION 'Description of your DLL' EXPORTS // the following line can be used to rename exports //InitDialogFromFile_renamed = InitDialogFromFile InitDialogFromFile Once you add that to the project - it will make sure that no mangling happens (sometimes even after doing extern "C" you still get a leading underscore!) Mark -----Original Message----- From: pythondotnet-bounces@python.org [mailto:pythondotnet-bounces@python.org] On Behalf Of Lalit DIGARI Sent: Monday, April 03, 2006 7:22 AM To: pythondotnet@python.org Subject: [Python.NET] Use of c++ dll in python Hello All , I have devloped a c++ dll named mydll in c++ how can I access it with in python script using ctype... Regard's Lalit _________________________________________________ Python.NET mailing list - PythonDotNet@python.org http://mail.python.org/mailman/listinfo/pythondotnet